HSS Parabolic-Flute Drill Bits

Specifically designed for pen-making, these extra-long high-speed steel bits have a patented five-point tip that cuts quickly and cleanly through the end grain of dense hardwoods, epoxy-stabilized woods, brittle synthetics (such as acrylic acetate), or other challenging materials.

The central point prevents skating when starting the cut. Four other points score the cut to eliminate breakout when exiting the blank. These tips also divide each cutting edge into two distinct bevels, creating narrow shavings that the parabolic flutes can clear quickly.